According to Wikipedia, An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages.
Forum sites make it easy for every website admin to get backlinks quickly. Number of backlinks are not important to rank well in search engine. All we need are quality backlinks. This way to get backlinks from forum is the easiest and the most effective to get higher page rank.Oh, I’m Sorry, I forget that you are here to grab the high PR Dofollow forum sites list.So without wasting your time, have a look at this list:
Hope, This list will help you improve search engine ranking. Do let me know via the comments if I have missed any forum site which you think should have been included in this list and also tell me which are your favorite Forum sites from this list and why?